Waterfall Model of development is suitable for software applications where different phases of software development are interdependent on each other. Usually, huge applications which require very structured and clear cut specifications and documentation for each development phase work on this model. E.g. System Software in which requirements are predefined and are not changed like in iterative or Agile Development methods.

 

This is the classic software development model and is widely accepted internationally. It increases the quality and efficiency of the entire development cycle and helps in predefining deadlines for various phases during the development cycle.

 

 

BT project manager interacts with the client to understand the requirement. Requirement is broken down into measurable, testable components which can assist in System design process for the application to be developed. Our highly experienced project managers having multiple years of experience in software development project handling communicate with client, to gather the requirement. They sought any clarification through repeated meetings and freeze out a clear cut requirement document.

 

These requirements frozen in step1 are then processed further. A system design is prepared containing blueprint of various modules and database components, which need to be developed to deliver the final product. The modules are generally classified depending upon the architecture of the application. It may be a single tire or an n-tire application. The classes to be used, database tables and their interaction with other entities is defined, so as to make a proper document for phase wise development.

 

Once the design as per step2, is complete the various modules defined are divided among different teams. BT high caliber software developers and GUI designers than take over. They develop and do unit testing for their respective modules. Their work is monitored closely by the team leader, so that the modules are finished within the deadline and coding is of best quality.

 

The various modules developed are now integrated to complete the system. Since the application was developed in different modules, it is pertinent that it is properly integrated so that the final product is user acceptable.

 

After, each phase of application development and integration the application is tested by BT testing team. Testing is performed according to the test plans created during the design and development phase. This process comprises look and feel testing (or the GUI testing as it is called), integration testing, load testing and regression testing with the purpose of preventing any bug from being present in the final product. The Quality Analysis team tests the product with both manual & automated tools depending upon the need.

 

Once the system is stable, it is delivered to the client and installed. The application is now ready to use from our end. In case there is an already running version, it is advised that both the new and old system is run parallel before completely changing over to the new one. Once the users find I stable and comfortable to use, the application is ready to be rolled over as new system to automate the tasks.

 

Not all the problems with a software application come into picture directly but they arise time to time and needs to be solved; hence this process is referred as Maintenance. BT, provides support and maintenance services, to ensure that once the product is delivered and implemented, it runs totally bug free. Any new functionality required to improve the product usability and application can be catered to as well.